Speaker: Conor Svensson

Conor is the Founder and CEO of Web3 Labs (https://www.web3labs.com) and the author of Web3j.

In this talk, Conor provides an overview of blockchain, how the Ethereum blockchain works, and how you can deploy and interact with smart contracts on Ethereum, all within Java, thanks to web3j.

Recorded at Sydney JVM Community Meetup, November 2016 (https://www.meetup.com/Sydney-JVM-Community/events/235146647/)

Программирование на Java для начинающих. Обзорный урок по основным типам коллекций языка Java, примеры использования для анализа данных.

Источник данных для анализа: hubofdata.ru/group/c282e23b-7bb3-41a4-b7b9-57fc0b8425d2?res_format=CSV

0:40 Коллекции
1:57 Списки
3:41 Множества или наборы
5:39 Карты или ассоциативные массивы
9:08 Практическая часть
36:16 Демонстрация результатов анализа

4차 산업혁명과 블록체인 컨퍼런스 (2018.2.28)

— 주최: KISDI(정보통신정책연구원)
— 후원: 과학기술정보통신부

В лекции №33 рассматривается концепция Merkle Tree, в частности:
1) Структура и принципы построения Merkle Trees.
2) Построение Merkle Branch и свойства деревьев Меркла.
3) Преимущества структуры Merkle Tree и области применения.

Telegram-чат, где можно задать вопросы: t.me/joinchat/IDXetUi27Vu8wtvAbNEzXw
Telegram-канал, чтобы узнавать новости первыми: t.me/blockchaincourse

This online training workshop enables developers (including non-C developers) to quickly learn the basics of EOSIO distributed application (DApp) development, with a focus on back-end smart contract creation.

1. Understand the high-level fundamental pieces of an EOSIO DApp

2. Learn the flow of transactions and actions (messages and events) in EOSIO

3. Observe the development and deployment of a DApp on EOSIO

4. Discover the various libraries available to a DApp developer

Learn more about blockchain technology and enterprise blockchain solutions: objectcomputing.com/expertise/blockchain-solutions

Second lecture of the Bitcoin and cryptocurrency technologies online course.

For the accompanying textbook, including the free draft version, see: bitcoinbook.cs.princeton.edu/

In this lecture (click the time to jump to the section):
* Centralization vs. decentralization 1:12
* Distributed consensus 4:45
* Consensus without identity: the block chain 17:46
* Incentives and proof of work 35:43
* Putting it all together 55:39

Fourth lecture of the Bitcoin and cryptocurrency technologies online course.

For the accompanying textbook, including the free draft version, see: bitcoinbook.cs.princeton.edu/

In this lecture (click the time to jump to the section):
* Simple Local Storage 0:27
* Hot and Cold Storage 6:28
* Splitting and Sharing Keys 19:52
* Online Wallets and Exchanges 30:54
* Payment Services 50:17
* Transaction Fees 58:30
* Currency Exchange Markets 1:04:09

Third lecture of the Bitcoin and cryptocurrency technologies online course.

For the accompanying textbook, including the free draft version, see: bitcoinbook.cs.princeton.edu/

In this lecture (click the time to jump to the section):
* Bitcoin transactions 1:44
* Bitcoin scripts 11:42
* Application of Bitcoin scripts 27:20
* Bitcoin blocks 42:09
* The Bitcoin network 47:58
* Limitations

MIT 15.S12 Blockchain and Money, Fall 2018
Instructor: Prof. Gary Gensler
View the complete course: ocw.mit.edu/15-S12F18
YouTube Playlist: www.youtube.com/playlist?list=PLUl4u3cNGP63UUkfL0onkxF6MYgVa04Fn

This lecture provides an introduction to the course and to blockchain technology.

License: Creative Commons BY-NC-SA
More information at ocw.mit.edu/terms
More courses at ocw.mit.edu